How many of you DO NOT experience buffetting and vibration problem?

[sickk23]

2005 XL w/ Michelin Defender 265/70R17...cruise a smooth 80/85 weekly. You all convinced me to just keep what I got rather then take a chance on something new & worse!!!

My 2017 and 18 both cruise 80-85 perfectly fine. Couldn’t pay me to drive something without side airbags again. So you definitely wouldn’t be in something new and worse lol

 

[Bardog]

My 2016 Denali, on factory 275/55R20 Continentals cruises smoothly at 85. I was going to level up front by 2" and go to the PPV front valance, because I backed out of a driveway the other day and it scraped like crazy - didn't even feel steep, but backing out it caught good. Not sure I'm going to do either, anymore. It rides so nicely as-is...

I get some buffeting with just my driver window down, but I've driven a lot of cars like that... I crack some other windows and it evens out.

At idle I think there is a bit of vibration about every 2 or 3 seconds, but I chalk that up to the rhythm of the large engine.

 

[cardude2000]

I get some buffeting with just my driver window down, but I've driven a lot of cars like that... I crack some other windows and it evens out.

At idle I think there is a bit of vibration about every 2 or 3 seconds, but I chalk that up to the rhythm of the large engine.

Just so you are aware those are normal so you’re all good. The Buffetting issue occurs with all windows up and the vibration occurs at 75+ and shakes your steering wheel.

There should be a sticky on this IMO so folks know what to look for but alas there isn’t...

 

[leroy712]

No buffeting or vibration issues at all through any speed. I used to get the “booming” sounds though with my stock 20’s. Now with my 24’s and Nitto 420s tires that seems to have gone away.

 

[Bardog]

Just so you are aware those are normal so you’re all good. The Buffetting issue occurs with all windows up and the vibration occurs at 75+ and shakes your steering wheel.

There should be a sticky on this IMO so folks know what to look for but alas there isn’t...

Good to know. Thanks for the clarification! A STICKY GLOSSARY would be great.

 

[yukonchief]

2017 Yukon I have done 80-85mph on my stock 18” wheels and my new 22” wheels and no vibrations of any sort. Thankfully cause I really like the Yukon I would hate to trade it in cause of this issue

 

[Tylus]

so I haven't visited this thread in years...luckily never had the described issues in my 2015

the other day I removed the roof rack crossbars so I could trade it in. On the highway I immediately noticed the booming and weird noises that I've always heard about. really freaked me out.

Tahoe had 42,200 miles. 2 sets of tires. 265/65R18 factory Goodyear crap. Replaced with 265/70R18 General Grabber AT2.

fast forward to the 2017 Suburban I just bought. it did not have the crossbars. driving home I got some annoying noise and whatnot. Immediately installed the crossbars from the Tahoe. The next day I had Dealership swap my brand new tires from Tahoe onto the Burb. I've since put another 250 miles on the Burb. No further weird noises.

Burb had 265/65R18 factory rubber up front and some 265/65R18 Michelins out back. So maybe those tires were the Burb issue

Could the crossbars create some sort of wind deflection that perhaps negates issues that cause the Booming/vibrations?

 

[dbbd1]

I have often wondered that, although, I thought it would make it happen, not negate it. On the other hand, I have the cross bars and no noise. I have also wondered about what the difference would be with a sunroof. Less roof line to flex???


I thought about starting a thread and poll but never got around to it.

 

[cardude2000]

so I haven't visited this thread in years...luckily never had the described issues in my 2015

the other day I removed the roof rack crossbars so I could trade it in. On the highway I immediately noticed the booming and weird noises that I've always heard about. really freaked me out.

Tahoe had 42,200 miles. 2 sets of tires. 265/65R18 factory Goodyear crap. Replaced with 265/70R18 General Grabber AT2.

fast forward to the 2017 Suburban I just bought. it did not have the crossbars. driving home I got some annoying noise and whatnot. Immediately installed the crossbars from the Tahoe. The next day I had Dealership swap my brand new tires from Tahoe onto the Burb. I've since put another 250 miles on the Burb. No further weird noises.

Burb had 265/65R18 factory rubber up front and some 265/65R18 Michelins out back. So maybe those tires were the Burb issue

Could the crossbars create some sort of wind deflection that perhaps negates issues that cause the Booming/vibrations?

Interesting. One of the ‘fixes’ to the buffetting is to re secure the roof cross members if they detached. Since cross bars on a rack act similarly to roof beams perhaps they help keep things from flexing and buffetting.

Who knows. Certainly not GM lol.

 

[ajs800]

a couple years back a lot of folks tried different things to see if it would help with the buffeting and the racks never did much. I drove ours a few months without and and after installing them it didn't help much, if any. We could still feel/hear the buffeting. The michelins and road force balancing made the biggest difference.

 

[LI Tahoe]

I just did a 300 mile road trip this weeekend, the longest Ive driven since having my tires road force balanced. The ride was mostly fine, no shaking or shimming, I did get wind booming and buffering but nothing as bad as it used to be

I really think the tires and RFB make a huge difference and would recommend EVERYONE to get it done

 

[humer101]

I just did a 300 mile road trip this weeekend, the longest Ive driven since having my tires road force balanced. The ride was mostly fine, no shaking or shimming, I did get wind booming and buffering but nothing as bad as it used to be

I really think the tires and RFB make a huge difference and would recommend EVERYONE to get it done

I really believe some people are more sensitive than others.
I put 79k miles on my 15 Denali, and about 6k on my 18 Denali and we do not experience any booming or buffering yet.
Or maybe it is a difference on the cars settings?

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[ajs800]

I truly believe it depends on the person as well. I have been in many and majority have had buffeting, IMO. 6mos ago I road in a '16 escalade (taxi service) and noticed it immediately at 50mph+. Asked the driver how he likes it and if he ever noticed and he replied, "Nope".

I have been wanting to trade-in for a 17 and now 18 for quite some time but have not as I am leary of dealing with another buffeting truck. Even if it tests drive fine, I know it can develop months later.

 

[GTNator]

I truly believe it depends on the person as well. I have been in many and majority have had buffeting, IMO. 6mos ago I road in a '16 escalade (taxi service) and noticed it immediately at 50mph+. Asked the driver how he likes it and if he ever noticed and he replied, "Nope".

I have been wanting to trade-in for a 17 and now 18 for quite some time but have not as I am leary of dealing with another buffeting truck. Even if it tests drive fine, I know it can develop months later.

What about getting a used one that’s already been “broken in”?


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[ajs800]

What about getting a used one that’s already been “broken in”?


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yes. I'm actually considering looking at a 17 burb premier this week with 14k on it.

 

[4OFFSHR]

I honestly have not had this issue, but...
I really hate to admit this but maybe some of you hear this same thing sometimes and for a while I could not figure out what it was, but when in the car alone if the rear or passenger seat belt buckle is turned a certain way, there is a rattle where it makes a sound like there is something loose and the buckle is simply hitting against the B or C pillar making an annoying knock sound. This use to happen occasionally in my 2011 Suburban and it also happens in my 2017. Drove me nuts at first trying to figure it out, I thought the seat was loose or something, but then one day realized what it was and now I just make sure to turn the buckles so they hang and not hit the side panel.
As far as the outside plastic door trim vibrating or making noise, I have not had any issues, but it is amazing after some mileage on these trucks how when you first get them they feel so solid, but after 6 months you start to feel a vibration or hear a rattle of something, could be the road etc, or just that new car feeling has gone away!

 

[humer101]

I honestly have not had this issue, but...
I really hate to admit this but maybe some of you hear this same thing sometimes and for a while I could not figure out what it was, but when in the car alone if the rear or passenger seat belt buckle is turned a certain way, there is a rattle where it makes a sound like there is something loose and the buckle is simply hitting against the B or C pillar making an annoying knock sound. This use to happen occasionally in my 2011 Suburban and it also happens in my 2017. Drove me nuts at first trying to figure it out, I thought the seat was loose or something, but then one day realized what it was and now I just make sure to turn the buckles so they hang and not hit the side panel.
As far as the outside plastic door trim vibrating or making noise, I have not had any issues, but it is amazing after some mileage on these trucks how when you first get them they feel so solid, but after 6 months you start to feel a vibration or hear a rattle of something, could be the road etc, or just that new car feeling has gone away!

I remember they fix my 15 Denali with wire tied plastic thing and I cannot believe .
But the 18 Denali seat is secure pretty good.
[emoji859]

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[cardude2000]

I honestly have not had this issue, but...
I really hate to admit this but maybe some of you hear this same thing sometimes and for a while I could not figure out what it was, but when in the car alone if the rear or passenger seat belt buckle is turned a certain way, there is a rattle where it makes a sound like there is something loose and the buckle is simply hitting against the B or C pillar making an annoying knock sound. This use to happen occasionally in my 2011 Suburban and it also happens in my 2017. Drove me nuts at first trying to figure it out, I thought the seat was loose or something, but then one day realized what it was and now I just make sure to turn the buckles so they hang and not hit the side panel.
As far as the outside plastic door trim vibrating or making noise, I have not had any issues, but it is amazing after some mileage on these trucks how when you first get them they feel so solid, but after 6 months you start to feel a vibration or hear a rattle of something, could be the road etc, or just that new car feeling has gone away!

Buffetting sounds like you are inside a giant kettle drum.

Vibration at speed will shake your teeth loose.

 

[Tylus]

My Tahoe started vibrating once I moved to CT. At around 33,000 miles the vibration occurred. I thought it was just the crappy roads up here. We drove from CA to TX to CT. The vibration occurred after the ~5,000 mile drive.

2 sets of tires, same deal on CT roads

2017 Burb doesn't do that. I even have the rims/tires from the Tahoe installed on the Burb.

Insane that GM/Chevy hasn't figured this out yet.

 

[cardude2000]

My Tahoe started vibrating once I moved to CT. At around 33,000 miles the vibration occurred. I thought it was just the crappy roads up here. We drove from CA to TX to CT. The vibration occurred after the ~5,000 mile drive.

2 sets of tires, same deal on CT roads

2017 Burb doesn't do that. I even have the rims/tires from the Tahoe installed on the Burb.

Insane that GM/Chevy hasn't figured this out yet.

This model, as big as a leap as it was, was surely impacted by their bankruptcy and subsequent govt bailout.

I think they’re onto the 2020 at this point.

Let’s all hope it irons out these gremlins and is a big jump ahead of the expy.